Alright, so i raf myself, And am extremely interested in multiboxing these for a littlebit, mainly for the level 85s, I'll only be doing 2 characters and tanking ALWAYS on the main account, right now it's warrior and hunter. I don't really need any sophisticated stuff, BASICALLY, what ill need..
Looting same thing
selling same thing
Turning in quests at same time

Now, Is it possible to multibox the dungeons? Please, It will be very helpful.. advice is sorely needed

You can do looting, vendoring, repairs and quest turn-in/accept at the same time using ISBoxer. You designate one character as the master and x characters as the slaves, by default hitting Ctrl+F will make all slaves follow the master and do exactly what it does. Doing one class as tank and a completely different class as DPS will be particularly difficult, especially in dungeons, unless you're very, VERY good at multi-tasking. Doing the same class/same spec is the easiest and fastest way to do this, since you can broadcast mouse movements and clicks to all windows at once to equip gear on each character at the same time.

That's about all I remember from my multi-boxing days a few months before Mists dropped.

Edit: Also, make a /assist <name> for all your characters, and put the main one you want to control as the name for that macro. This way just hitting a single button will make all of them target and attack the same thing at once.

It's not free, but there is a 7 day free trial you can apply for to see if you like the way it works. It's the first thing I tried when I got into multiboxing, and I was able to get the hang of it with only about an hour and a half of working with it. Once you get setting up character profiles with it, it's really simple. The character profiles allow one button press to create/join groups with all your characters and it starts the game and logs in each respective account to the character to select screen for you when you hit the start game button. It will also lay out the windows the way you choose to have them during setup, I had one big window that took up 75% of my screen and on the right side of my monitor I had room for 5 additional, smaller clients.

If you're looking for something free, you can always try AutoHotKey, but that's much more difficult and requires you to write your own broadcast scripts.

You'll want that addon jamba, keybind for interact with target (must have mouse movement allowed) which can be passed and AHK setup to broadcast mouse clicks between the two windows via a key command (provided they are the same size) as well as a button made for using /follow for your main character.

ISBoxer is worth the $ though, especially if you plan on doing multiple characters.

After going from keyclone to ISBoxer i became the #1 boxer in the world for PVP, its a big difference but if you just want basic shit theres no reason to use more than necessary.

gah its all so complicated to me :c Ehm.. basically It's to get to level 15. So i can dungeon.. And even in dungeons im the tank, Ill pull the dps that we lose from my hunter following me :P or whatever i decide to make. it's still hard for me..

People really won't appreciate you doing that, they will know you are multiboxing which tends to agitate people anyway. But to leach on the group will probably not slide with them.

You will definitely want to use some form of multiboxing software, there are free options which can be found through shodakans link. You can get away with a program that just sends your hotkeys to the other window, so 1 on the numbpad is also pressed on the other window. You will want to utilize macro's on your hunter and think about what abilities that will match up with your tank. I don't know warriors but the move that you spam to get group agro would go in slot; then on your hunter have multishot. Slot 2 would be your boss aggro macro, and on your hunter your single target macro.

ISBoxer allows greater control such as formations and one button does all macro's. So each time you press 1 on the numpad it can send an alternative hotkey to your hunter than your warrior. For a year it was only ~£30

I've only done it for about a month and jumped straight in with a 5 man team, took a few days to get the hang of but should be fairly quick with a 2 man team. The key is to spend time setting up before you jump into doing dungeons.

in reality, i dont want it to fight at all, jsut follow, Loot quest and sell. thats it. thats all i want. :3 I don't plan on using the other acct after i get some 85s. hotkeynet is very hard to use, or maybe im just an idiot.

I have never multiboxed but I've always been under the impression that you do multiple range characters or melee, etc.
Wouldn't a tank and hunter be incredibly difficult to multibox? Especially considering the fact that a lot of bosses cleave in melee range, etc.

Previous multiboxer. I did 3 shamans, 3 mages, and 3 warlocks. I stopped mutliboxing in wotlk because it wasnt as easy as it previously was. I leveled them with the intention of raiding to bolster the ranks of our small guild. With new mechanics and a lot more movement compared to karazhan, it became too complicated for me to pve. Pvp was always enjoyable.

Nowadays I would imagine there is still a lot of micromanaging that will have to occur in todays dungeons. I havent played in a few months but this comes to mind as being a pain in the ass: the instance with the big monkey that rolls barrels around. The barrels knock you around and would require a lot of dodging and spamming your macros to stay together.

I can answer more questions if you'd like, this is just a broad strokes reply.

I literally just started doing this in the past 48 hours. This isn't going to be easy. Most of the information I could come across was drastically out of date, and I couldn't find 1 good resource that just explained it for dummies. It took a lot of scavaging and googling to even get a grasp on what I needed to do. http://www.dual-boxing.com/content/ is a great resource, but even there, they aren't going to make it easy for you.

Here's where I'm at:

ISBoxer is supposedly good, but I'm not paying for it so I skipped it. HotKeyNet, I couldn't figure out how to work, but I was also familar with AutoHotkey. And finding a working AHK script can be a real bitch; here's the one I'm currently using (note that I'm changing it as I discover I need more things): http://pastebin.com/ta7XPpYq. At the very least, you can learn how to pass keys between multiple WoW programs (I'm only Multiboxing 2 characeters, but expanding 3+ is trivial).

Jamba is a really good addon, get it. You can use programs/scripts to avoid using it, but it will make your life a lot easier.

You need to make a couple in-game WoW macros. "/cast [@focustarget,harm,nodead] Spell" or macroing something to set your current target to your focustarget and then a DPS spell .. both can work (I found the later easier). You need a macro for every spell... Jamba can do it (I haven't figured out how yet), or BindPad as a last resort for more Macro space.

Click to move and interact with target are also key to understand, to let your slave characters turn in quests and talk to NPCs without macro-managing.

Also consider whether you really need to view your slave(s) at all. I had some script that overlayed the slave on 25% of my screen, but I found I really didn't need to see it. I could tell if my slave was following/DPSing/etc., I just kept it underneath my master character window and tabbed back and forth if I really needed to (If you have to do something on your slave, it makes it a lot easier to do as well).

(DISCLAIMER: There are definitely way better ways to do things, I'm just getting into it and still learning. Hopefully, I can save you some time... Google is your friend!)

I'm not sure if you are an absolute idiot or just well. yeah im going with idiot
his issue has been discussed to death on the World of Warcraft forums. If we change our stance regarding multi-boxing, you'll know it.
Daxxarri – Community Manager 12/5/2012

The decision to allow multiboxing has much to do with a person's ability to be registered to multiple accounts. If we did not allow it, you would only be able to have one World of Warcraft account, ever. That would cause a number of complications that we sometimes still see today, due to a misunderstanding of our policies, but the issue would be exacerbated greatly if we were to limit things to a single license per user.
Once the determination was made the allow a person to have multiple WoW licenses registered to a single Battle.net or even multiple licenses under the same name, how many becomes entirely irrelevant.

Two, ten or thirty, or more, the rules still apply. As long as the person registered to the account is the one in direct control of those characters, it is not against our policies to do so. please do not comment on things/games you have absolutely no clue of what your talking about

I mean, I am not going to try to explain anything to someone whom thinks having to play multiple characters at once gives some sort of unfair advantage in any other way then questing a tiny bit faster, Sir I'd have to say you are honesty an idiot, You are like one of those people whom no matter how much you explain that they are wrong they just seem to not be able to grasp the simple concept that they are a total jackass. Go fuck yourself and good day :D